DOI: 10.1055/s-00000142

Frauenheilkunde up2date

References

Berghella V, Haas S, Chervoneva I. et al
Patients with prior second-trimester loss: prophylactic cerclage or serial transvaginal sonograms? 
Am J Obstet Gynecol 2002; 187: 747-751  

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